JP2018114304A - Bottom and bed device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate detachment of a part of a bottom from a bed device.SOLUTION: A bottom includes: a first main body frame 61 to be attached to a support frame 12 of a bed device 10; a first bottom member 62 placed on an upper surface of the first main body frame 61 in a state where front and rear surfaces are directed in a vertical direction; and a first fixing member 63 for detachably fixing the first bottom member 62 to the first main body frame 61. The first fixing member 63 is arranged in an upper surface of the first bottom member 62.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bottom and a bed apparatus.

  Conventionally, as a bottom attached to a bed apparatus main body, for example, as shown in Patent Document 1 below, the front and back surfaces are vertically formed, are integrally formed of a synthetic resin material, and are attached to the bed apparatus by a fixing member. Are known.

JP 2014-217517 A

  However, since the whole of the conventional bottom is integrally formed of a synthetic resin material, for example, even when only the upper surface portion of the bottom is removed from the bed apparatus main body to be wiped, the entire bottom apparatus is used. It was necessary to remove it from the main body.

  This invention is made | formed in view of the situation mentioned above, Comprising: It aims at providing the bottom which can remove a part of bottom from a bed apparatus easily.

In order to solve the above problems, the present invention proposes the following means.
(1) A bottom according to the present invention includes a main body frame attached to a support frame of a bed apparatus, a bottom member placed on the upper surface of the main body frame with the front and back surfaces directed in the vertical direction, and the bottom member And a fixing member that is detachably fixed to the main body frame, and the fixing member is disposed on an upper surface of the bottom member.

In the present invention, the bottom includes a main body frame attached to the support frame of the bed apparatus, and a bottom member placed on the upper surface of the main body frame. For this reason, when the upper surface of the bottom member is wiped off, for example, only the bottom member having the upper surface of the bottom can be removed from the main body frame, and excellent handleability can be provided.
In addition, since the fixing member is disposed on the upper surface of the bottom member, it is possible to operate the fixing member from above the bottom member. At the time of this operation, for example, the tool is turned from below the bottom member, There is no need to enter a gap between other members, and the bottom member can be easily attached to and detached from the main body frame.
In addition, for example, when the main body frame is formed of a pipe or the like and the bottom member is formed of a sheet metal or the like, the initial cost for mold production or the like can be reduced compared to the case where the bottom is integrally formed by injection molding. And the bottom can be manufactured at a low cost.

  (2) The bottom according to (1), wherein the bottom member has a rectangular shape having four sides when viewed from above, and the fixing member is provided on at least one of the four sides. A locking portion that is locked to the lower surface of the main body frame may be provided on a side portion that is different from the side portion on which the fixing member is provided among the four side portions.

  In this case, the fixing member is disposed on at least one of the four sides of the outer peripheral edge of the bottom member, and the other member is provided on the lower surface of the main body frame and on the lower surface of the main body frame. A locking portion for stopping is provided. For this reason, when an external force that lifts the bottom member from the main body frame is applied to the bottom member, the locking portion is locked to the lower surface of the main body frame. Thereby, such an external force applied to the bottom member can be received not only by the fixing member but also by the locking portion. As a result, it is possible to suppress a large force from being applied to a portion of the bottom member located around the fixed member, and it is possible to suppress local deformation of the bottom member.

  (3) The bottom according to (2), wherein, of the four side portions, the side portion on which the fixing member is disposed and the side portion on which the locking portion is disposed You may face each other.

  In this case, the locking portion is disposed on the side portion of the bottom member that is farthest from the side portion on which the fixing member is disposed. A large distance can be secured. For this reason, when an external force that lifts the bottom member from the main body frame is applied to the side of the bottom member that is farthest from the side where the fixing member is disposed, the rotation that occurs around the fixing member Since the moment is received by the locking portion, the reaction force generated in the locking portion can be reduced. Thereby, a bottom member can be reliably latched to a main body frame.

  (4) The bottom according to (2) or (3) above, wherein, among the four side portions, the side portion where the locking portion is disposed extends downward, and the lower end portion has the above-described bottom portion. A bent portion in which a locking portion is formed may be provided, and the bottom member, the bent portion, and the locking portion may be integrally formed with each other.

  In this case, the bent portion and the locking portion can be formed, for example, by bending the bottom member, and the bottom member can be manufactured at low cost.

  (5) The bottom according to any one of (1) to (4) above, wherein the main body frame and the bottom member are each formed with a communication hole communicating with each other in the vertical direction, and the fixing member Includes a shaft body extending in the vertical direction and a flange portion disposed at an upper end portion of the shaft body, and the fixing member has the flange portion disposed on an upper surface of the bottom member, and the shaft body includes: You may fix the said bottom member to the said main body frame in the state inserted integrally in each communicating hole of the said main body frame and the said bottom member.

  In this case, the shaft member is integrally inserted into the main body frame and the bottom member in the communication holes formed separately, and the flange member is disposed on the upper surface of the bottom member, thereby fixing the bottom member to the main body frame. Can do. Thus, when the bottom member is attached to and detached from the main body frame, the flange portion protruding upward from the upper surface of the bottom member can be operated, and this attachment and detachment operation can be easily performed.

  (6) The bottom according to any one of (1) to (5), wherein the flange portion is directed to the inner side from the lower surface placed on the upper surface of the bottom member and the outer peripheral edge of the lower surface. And a protruding curved surface that gradually extends upward.

  In this case, since the protruding curved surface is connected from the outer peripheral edge portion of the lower surface of the fixing member placed on the upper surface of the bottom member, the outer peripheral edge of the flange portion in the fixing member and the upper surface of the bottom member are between It is possible to suppress the occurrence of a step, and it is possible to suppress an object or the like from being caught on such a step.

  (7) A bed apparatus according to the present invention is a bed apparatus including a bottom and a support frame to which the bottom is attached, and the bottom is any one of (1) to (6) above. It is the bottom which concerns.

  In this case, since the bed apparatus is provided with the above-described bottom, the above-described effects can be achieved in the bed apparatus.

  (8) The bed apparatus according to the present invention is the bed apparatus according to the above (7), in which the bottom is horizontally oriented so that the front and back surfaces of the bottom member gradually extend in the up-down direction toward the front-rear direction. The bottom member has a rectangular shape having two sides extending in the front-rear direction and two sides extending in the left-right direction when viewed from above, and is supported by the support frame. A locking portion that locks to the lower surface of the main body frame may be disposed on a side portion that is positioned above when the bottom member is inclined among the two side portions extending in the direction.

  In this case, when the front and back surfaces of the bottom member are inclined with respect to the horizontal direction among the two side portions extending in the left-right direction at the outer peripheral edge portion of the bottom member, It is arranged. For this reason, since the front and back surfaces of the bottom member are inclined with respect to the horizontal direction, the weight of the bottom member that cannot be supported by the upper surface of the main body frame can be received not only by the fixing member but also by the locking portion. The load applied to the fixing member can be suppressed.

  According to the present invention, a part of the bottom can be easily removed from the bed apparatus.

It is a perspective view of the bed apparatus concerning one embodiment of the present invention. It is a side view of the bed apparatus shown in FIG. It is a top view of the bed apparatus shown in FIG. It is a bottom view of the bed apparatus shown in FIG. It is a side view which shows the state which raised the bed in the bed apparatus shown in FIG. It is a perspective view which shows the state which rotated the back bottom and the leg bottom in the bed apparatus shown in FIG. It is a perspective view of the back bottom of the bed apparatus shown in FIG. It is a perspective view which shows the main body frame of the back bottom of the bed apparatus shown in FIG. 8A is a perspective view of the front surface of the bottom member of the back bottom shown in FIG. 7, and FIG. It is a perspective view which shows the fixing member of the back bottom of the bed apparatus shown in FIG. It is a perspective view which shows the modification of the bed apparatus shown in FIG. It is a perspective view which shows the state which rotated the back bottom and the leg bottom in the bed apparatus shown in FIG. It is a perspective view which shows the use condition of the bed apparatus shown in FIG.

A bed apparatus 10 according to an embodiment of the present invention will be described below with reference to FIGS.
The bed apparatus 10 can be used, for example, as a general floor bed or an ICU bed in a medical environment (including a care environment). 1 to 13, an arrow H indicates a direction that becomes the head side H when a person (user) sleeps, and an arrow F indicates a direction that becomes the foot side F when the person sleeps. In the following description, the horizontal direction orthogonal to the front-rear direction X, which is the direction of arrows H and F, may be referred to as the left-right direction Y. The front-rear direction X and the left-right direction Y are both directions along the horizontal direction and are orthogonal to each other.

As shown in FIGS. 1 to 6, the bed apparatus 10 includes a bed apparatus main body 17 and a plurality of wall-like members 18 that are erected on the outer peripheral edge of the bed apparatus main body 17. The bed apparatus main body 17 includes a bed 11, a support frame 12, a bed option 15, and a drive mechanism 16, and the wall-shaped member 18 includes a fence body 13 and a board 14. The bed apparatus 10 is a so-called electric bed that uses electric power as a power source.
The bed 11 is longer in the front-rear direction X than in the left-right direction Y when viewed from above. The longitudinal direction of the bed 11 is the front-rear direction X, and the lateral direction of the bed 11 is the left-right direction Y. A mattress 80 is arranged on the bed 11 as shown in FIG. A user lies on the bed 11 via a mattress 80.

The bed 11 includes a back bottom 21, a waist bottom 22, and a leg bottom 23. These back bottom 21, waist bottom 22 and leg bottom 23 are arranged in this order from the head side H to the foot side F. The back bottom 21 supports the back of the user. The waist bottom 22 supports the user's waist. The leg bottom 23 supports a user's leg.
The leg bottom 23 includes a knee bottom 24 and a foot bottom 25. The knee bottom 24 and the foot bottom 25 are arranged in this order from the head side H to the foot side F. The knee bottom 24 supports the waist from the user's knee. The foot bottom 25 supports the foot tip from the user's knee.

The support frame 12 supports the bed 11. The support frame 12 receives the loads of the bed 11 and the users on the bed 11. As shown in FIGS. 2 and 4, the support frame 12 includes a base frame 31, a main frame 32, and an elevating mechanism 33.
Base frame 31 is grounded to the ground plane. The base frame 31 has a rectangular shape in plan view. The base frame 31 includes a first vertical member 34 extending in the front-rear direction X, a first horizontal member 35 extending in the left-right direction Y, and a grounding portion 36 that contacts the grounding surface.

A pair of first vertical members 34 are provided with a gap in the left-right direction Y.
The first horizontal member 35 is constructed between a pair of left and right first vertical members 34. The first horizontal member 35 connects the pair of left and right first vertical members 34 in the left-right direction Y. A pair of first lateral members 35 are provided at intervals in the front-rear direction X. The first horizontal member 35 is fixed to the first vertical member 34 so as not to move. The first horizontal member 35 is fixed to the first vertical member 34 by welding or the like, for example.

  The grounding portion 36 is provided at the end of the first vertical member 34 in the front-rear direction X. An end portion in the front-rear direction X of the first vertical member 34 protrudes outward in the front-rear direction X from the first horizontal member 35. In the example shown in the drawing, a caster is used as the grounding portion 36 to make the bed apparatus main body 17 movable. However, a rubber cover may be used instead of the caster. Moreover, you may employ | adopt an antistatic caster as a caster.

  The main frame 32 supports the bed 11. The main frame 32 has a rectangular shape in plan view. The main frame 32 includes a second vertical member 37 extending in the front-rear direction X, a second horizontal member 38 extending in the left-right direction Y, and an option receiver 39 for attaching the bed option 15.

A pair of second vertical members 37 are provided at intervals in the left-right direction Y.
The second horizontal member 38 connects the pair of left and right second vertical members 37 in the left-right direction Y. A pair of second lateral members 38 are provided at intervals in the front-rear direction X. The second horizontal member 38 is fixed to the second vertical member 37 so as not to move. The second horizontal member 38 is fixed to the second vertical member 37 by welding, for example. An end portion in the left-right direction Y of the second horizontal member 38 protrudes in the left-right direction Y from the second vertical member 37.
The option receiver 39 is provided at the end of the second transverse member 38 in the left-right direction Y.

  As shown in FIGS. 4 and 5, the elevating mechanism 33 connects the main frame 32 to the base frame 31 so as to be movable up and down. The lifting mechanism 33 includes a pair of front and rear lifting units 40. The pair of lifting units 40 are arranged so as to sandwich the waist bottom 22 in the front-rear direction X. Each lifting unit 40 includes a pair of left and right link mechanisms 41 and a connecting member 42 that connects the pair of left and right link mechanisms 41. As the pair of front and rear lifting units 40 operate in parallel, the lifting mechanism 33 moves the bed 11 up and down.

  As shown in FIGS. 1 and 6, the support base 12 supports a back bottom 21 and a leg bottom 23 (movable bottom) so as to be rotatable around a rotation shaft 26 extending in the left-right direction Y. The bed apparatus 10 is a so-called gatch bed. In the present embodiment, the waist bottom 22 is fixed to the support base 12, and the back bottom 21 and the leg bottom 23 are rotatably connected to the waist bottom 22 via the rotation shaft 26.

The rotation shaft 26 includes a first rotation shaft 26 a that connects the back bottom 21 and the waist bottom 22, and a second rotation shaft 26 b that connects the leg bottom 23 and the waist bottom 22.
Note that the knee bottom 24 and the foot bottom 25 are connected so as to be rotatable around a bending shaft 27 extending in the left-right direction Y. Therefore, when the leg bottom 23 rotates around the second rotation shaft 26b, the leg bottom 23 bends upward so that the bending shaft 27 forms a vertex.

  The board 14 is an outer peripheral edge portion of the bed apparatus main body 17, and is erected at an end portion in the front-rear direction X of the support base 12 so as to extend along the outer peripheral edge portion of the bed apparatus main body 17. The board 14 is formed in a plate shape whose front and back faces in the front-rear direction X. The board 14 is detachably attached to the support base 12. The board 14 includes a head board 14 a located on the head side H and a foot board 14 b located on the foot side F. In the illustrated example, the board 14 is attached to the second lateral member 38, and the end portion in the left-right direction Y of the board 14 is located inside the left-right direction Y with respect to the option receiver 39.

  The fence body 13 is an outer peripheral edge portion of the bed apparatus main body 17 and is disposed at an end portion in the left-right direction Y of the support base 12 so as to extend along the outer peripheral edge portion of the bed apparatus main body 17. In the present embodiment, the fence bodies 13 are arranged on both sides in the left-right direction Y with respect to the support base 12. A pair of the fence bodies 13 are provided at intervals in the front-rear direction X. The fence body 13 is connected to the support frame 12 so as to be movable up and down.

The fence body 13 is arranged so as to be biased toward the head side H along the front-rear direction X. When the couch device 10 is viewed from the left-right direction Y, the fence body 13 is close to the head board 14a and is separated from the foot board 14b.
The bed option 15 is detachably attached to the option receiver 39. In the present embodiment, a spacer 15 a is provided as the bed option 15. The spacer 15a is an auxiliary fence that fills the gaps between the plurality of wall-like members 18, and closes the space between the fence body 13 and the foot board 14b in the side view.

  As shown in FIG. 4, the drive mechanism 16 is attached to the support base 12. A plurality of drive mechanisms 16 are provided. The plurality of drive mechanisms 16 are disposed below the bed 11. The drive mechanism 16 moves a movable part that is at least a part of the bed 11 and the support base 12. The drive mechanism 16 is a linear actuator that expands and contracts in the front-rear direction X, and moves the movable part by extending and contracting in the front-rear direction X.

The drive mechanism 16 includes an elevating drive mechanism 51 that raises and lowers the bed 11 as a movable part, and a rotation drive mechanism 52 that rotates the back bottom 21 or the leg bottom 23 as a movable part.
The elevating drive mechanism 51 transmits a driving force to the elevating mechanism 33 to raise and lower the main frame 32 relative to the base frame 31. A plurality of lifting drive mechanisms 51 are provided. A pair of lifting drive mechanisms 51 are provided in the front-rear direction X. The pair of elevating drive mechanisms 51 is disposed in the center portion of the bed 11 in the left-right direction Y.

  Both ends in the front-rear direction X of each elevating drive mechanism 51 are attached to the main frame 32 and the elevating unit 40, respectively. In the head-side H elevating drive mechanism 51, the end on the head side H is attached to the elevating unit 40 on the head side H, and the end on the foot side F is attached to the main frame 32. In the foot-side F lift drive mechanism 51, the end of the foot side F is attached to the lift unit 40 of the foot side F, and the end of the head side H is attached to the main frame 32.

  The rotation drive mechanism 52 includes a first drive mechanism 53 that rotates the back bottom 21 and a second drive mechanism 54 that rotates the leg bottom 23. The first drive mechanism 53 and the second drive mechanism 54 are arranged so as to sandwich the elevating drive mechanism 51 in the left-right direction Y. Both ends of each rotation drive mechanism 52 in the front-rear direction X are attached to the support frame 12 and the back bottom 21 or the leg bottom 23, respectively.

As shown in FIG. 7, the back bottom 21 is formed on the upper surface of the first main body frame 61 with the first main body frame 61 attached to the support base 12 of the bed apparatus 10 and the front and back surfaces thereof being directed in the vertical direction Z. A first bottom member 62 placed thereon and a first fixing member 63 that detachably fixes the first bottom member 62 to the first main body frame 61 are provided.
Similarly, as shown in FIG. 1, the waist bottom 22 includes a second main body frame 71, a second bottom member 72, and a second fixing member 73. Of the leg bottoms 23, the knee bottom 24 includes a third main body frame 81, a third bottom member 82, and a third fixing member 83, and the foot bottom 25 includes a fourth main body frame 91, a fourth bottom (not shown). A member 92 and a fourth fixing member 94 (see FIG. 3) are provided.
Hereinafter, the structure of the first main body frame 61, the first bottom member 62, and the first fixing member 63 for the back bottom 21 will be described.

  As shown in FIG. 8, the first main body frame 61 is a frame-like member that has a rectangular shape in a top view. The first main body frame 61 is disposed with a space in the left-right direction Y, and connects a pair of vertical frame portions 61a extending in the front-rear direction X to the head side H ends of the pair of vertical frame portions 61a. The horizontal frame 61b extends in the left-right direction Y, and the support frame 61d extends in the left-right direction Y by connecting the ends of the foot sides F of the pair of vertical frames 61a.

The pair of vertical frame portions 61a and horizontal frame portions 61b are integrally formed with each other.
The pair of vertical frame portions 61a and the horizontal frame portions 61b are formed in a cylindrical shape having a rectangular shape in a cross-sectional view orthogonal to the extending direction. Connection portions between the pair of vertical frame portions 61 a and horizontal frame portions 61 b are each formed in a curved surface shape that protrudes toward the outside of the bed apparatus 10. Of the outer surfaces of the pair of vertical frame portions 61a and horizontal frame portions 61b, the width dimension of the upper surface facing upward is the same over the entire area.

  The support frame portion 61d is formed in a cylindrical shape having a rectangular shape in a cross-sectional view orthogonal to the left-right direction Y. A connecting body 55 to which the first drive mechanism 53 is attached is disposed on a portion of the support frame portion 61d located on one side in the left-right direction Y. The connecting body 55 is integrally connected across the lower surface facing downward and the rear surface facing the foot side F of the outer surface of the support frame portion 61d, and gradually extends downward toward the foot side F.

The width dimension on the upper surface of the support frame portion 61d is larger than the width dimension on the upper surfaces of the pair of vertical frame portions 61a and the horizontal frame portion 61b. A frame communication hole 61e that penetrates the upper surface of the support frame portion 61d in the vertical direction Z is formed at the center portion in the left-right direction Y on the upper surface of the support frame portion 61d.
At both end portions in the left-right direction Y of the support frame portion 61d, rotating members 56 connected to the first rotating shaft 26a are disposed separately.

  The first main body frame 61 is provided with a plurality of reinforcing frame portions 61g and 61h that connect the support frame portion 61d and the lateral frame portion 61b and extend in the front-rear direction X. The reinforcing frame portions 61g and 61h include a first reinforcing frame portion 61g located in the center portion in the left-right direction Y of the first main body frame 61 and a pair of second reinforcing frame portions 61h located outside the left-right direction Y. I have. A plurality of connecting plates 64 are disposed between the pair of second reinforcing frame portions 61h and the vertical frame portions 61a located on the outer sides of the respective left and right directions Y.

  As shown in FIG. 9, the first bottom member 62 is formed in a plate shape having a rectangular shape having four sides when viewed from above. The first bottom member 62 is formed of, for example, sheet metal or the like, and the front and back surfaces are directed in the vertical direction Z. A plurality of long holes 62 a penetrating the front and back surfaces are formed on the front and back surfaces of the first bottom member 62. At both ends in the left-right direction Y at the end on the head side H of the first bottom member 62, notches 62b cut out toward the inner side in the left-right direction Y and toward the foot side F are formed separately.

  The notch 62b has a lateral edge 62p extending inward in the left-right direction Y from the end on the head side H at the sides located at both ends in the left-right direction Y of the first bottom member 62, and the first bottom member 62 In the side part located on the head side H, a vertical edge 62q extending from both ends in the left-right direction Y to the foot side F and a connection edge 62r connecting the horizontal edge 62p and the vertical edge 62q are formed. As shown in FIG. 7, the notch portion 62 b communicates in the vertical direction Z with the inside of the connection portion between the pair of vertical frame portions 61 a and the horizontal frame portion 61 b in the first main body frame 61.

As shown in FIG. 9, the outer peripheral edge of the first bottom member 62 is bent downward. Therefore, when the first bottom member 62 is placed on the first main body frame 61, the first main body frame 61 is fitted into the outer peripheral edge of the first bottom member 62 by fitting the outer surface of the first main body frame 61. In contrast, the first bottom member 62 can be positioned.
Of the four sides of the outer peripheral edge of the first bottom member 62, a bottom communication hole 62 c that penetrates the first bottom member 62 in the up-down direction Z is provided at the center in the left-right direction Y at the portion located on the foot side F. Is formed.

In the present embodiment, as shown in FIG. 1, the first fixing member 63 is disposed on the upper surface of the first bottom member 62. As shown in FIG. 10, the first fixing member 63 includes a shaft body 63a extending in the vertical direction Z, and an annular flange portion 63b disposed at the upper end of the shaft body 63a. The first fixing member 63 is made of a synthetic resin material. The shaft body 63a and the flange portion 63b are separated from each other, and the shaft body 63a is inserted into the flange portion 63b.
In the first fixing member 63, the flange portion 63 b is disposed on the upper surface of the first bottom member 62, and the shaft body 63 a extends to the frame communication hole 61 e of the first main body frame 61 and the bottom communication hole 62 c of the first bottom member 62. The first bottom member 62 is fixed to the first main body frame 61 by being inserted integrally. The shaft 63a is a male screw member having a cross groove formed in the head.

Further, in the present embodiment, the flange portion 63b has a lower surface placed on the upper surface of the first bottom member 62 facing downward, and a protruding curved surface 63c that gradually extends upward from the outer peripheral edge of the lower surface toward the inner side. , Is configured.
A locking piece 63d that extends downward and is elastically deformable in the radial direction of the flange 63b is formed on the inner peripheral edge of the lower surface of the flange 63b. A plurality of locking pieces 63d are formed at intervals in the circumferential direction of the flange portion 63b. The locking piece 63d is formed with a projection (not shown) that protrudes inward in the radial direction and engages with the male screw portion of the shaft body 63a.

A counterbore hole 63e that is recessed downward and accommodates the head of the shaft body 63a is formed in the inner peripheral edge of the upper surface of the flange portion 63b. By inserting the shaft body 63a into the flange portion 63b, the locking piece 63d is elastically deformed outward in the radial direction, and the outer surface of the locking piece 63d is the inner periphery of each of the bottom communication hole 62c and the frame communication hole 61e. Close to the face. In the state where the head of the shaft body 63a is accommodated in the counterbore hole 63e of the flange portion 63b, the upper surface of the flange portion 63b and the upper surface of the head portion of the shaft body 63a are connected without a step in the vertical direction Z.
Further, by rotating the head portion of the shaft body 63a around the central axis of the shaft body 63a, the protrusion of the locking piece 63d is relatively moved along the thread groove of the shaft body 63a, whereby the shaft body 63a is flanged. It moves to the up-down direction Z from the part 63b, and the 1st fixing member 63 can be removed.

  In the present embodiment, as shown in FIG. 9, among the four sides of the outer peripheral edge of the first bottom member 62, the side that is different from the side where the first fixing member 63 is disposed is A first locking portion 65 that locks to the lower surface of the first main body frame 61 is disposed on the lower surface of the one main body frame 61. The first locking portion 65 is disposed on a side portion that is placed on the horizontal frame portion 61 b among the four side portions in the outer peripheral edge portion of the first bottom member 62. The 1st latching | locking part 65 is arrange | positioned over the full length of the left-right direction Y of this edge part.

Of the four sides at the outer peripheral edge of the first bottom member 62, the side where the first fixing member 63 is disposed and the side where the first locking portion 65 is disposed are opposite to each other. doing. In the illustrated example, the side portion where the first fixing member 63 is disposed and the side portion where the first locking portion 65 is disposed are opposed to each other in the front-rear direction X.
Of the four sides at the outer peripheral edge of the first bottom member 62, the side where the first locking portion 65 is disposed extends downward, and the first locking portion 65 is formed at the lower end. The bent portion 66 is disposed. The bent portion 66 is disposed over the entire length of the side portion in the left-right direction Y. One of the bent portions at the four outer peripheral edges of the first bottom member 62 described above is a bent portion 66.

  The lower surface of the first bottom member 62 and the first locking portion 65 are opposed to each other in the vertical direction Z, and the first bottom member 62, the bent portion 66, and the first locking portion 65 are integrally formed with each other. ing. The bent portion 66 and the first locking portion 65 are formed by bending. The long hole 62a and the notch 62b are formed by processing using a mold or laser processing.

  In the present embodiment, as shown in FIG. 6, a plurality of back bottoms 21, waist bottoms 22, knee bottoms 24, and foot bottoms 25 are arranged on the support base 12 in the front-rear direction X. The knee bottom 24 and the foot bottom 25 are supported so as to be inclined with respect to the horizontal direction so that the front and back surfaces of the bottom members 62, 82, and 92 gradually extend in the vertical direction Z toward the front-rear direction X. Yes. That is, the back bottom 21 is inclined so as to extend upward gradually toward the head side H, the knee bottom 24 is inclined so as to extend upward gradually toward the foot side F, and the foot bottom 25 is As it goes to the head side H, it gradually inclines so as to extend upward.

And in this embodiment, each latching | locking part 65,85,95 in each bottom member 62,82,92 is a side part extended in the left-right direction in the outer-periphery edge part of each bottom member 62,82,92, When the front and back surfaces of the bottom members 62, 82, 92 are inclined with respect to the horizontal direction, they are disposed on the side portion located above.
That is, the first locking portion 65 in the back bottom 21 is disposed on the horizontal frame portion 61 b in the first main body frame 61. Further, the third locking portion 85 in the knee bottom 24 is disposed on the side of the foot side F in the third main body frame 81. Moreover, the 4th latching | locking part 95 in the leg bottom 25 is arrange | positioned at the side part of the head side H in the 4th main body frame 91 (refer FIG. 2).

Next, a modified example of the bed apparatus 10 will be described.
As shown in FIGS. 11 and 12, in the bed apparatus 20 of the modified example, a recording table 97 is disposed on the foot board 14 b located on the foot side F. The recording table 97 can be stored along the footboard 14b when not in use by rotating the front and back surfaces toward the foot side F by a rotating shaft 97a attached to the footboard 14b.

In the bed apparatus 20, an assist bar 96 is provided. When the user stands up from the bed 11, the user can easily stand up by putting weight on the assist bar 96.
In the bed apparatus 20, a footlight (not shown) that illuminates the user's feet is disposed on the lower surface of the support base 12.
In the bed apparatus 20, as shown in FIG. 12, when the knee bottom 24 is inclined so as to extend upward gradually toward the foot side F, the foot bottom 25 is raised and lowered without being inclined with respect to the horizontal direction. be able to.

  As described above, according to the bottom according to the present embodiment, the back bottom 21 is placed on the first main body frame 61 attached to the support frame 12 of the bed apparatus 10 and the upper surface of the first main body frame 61. A first bottom member 62. For this reason, when, for example, wiping the upper surface of the first bottom member 62, only the first bottom member 62 having the upper surface of the back bottom 21 can be removed from the first main body frame 61, which is excellent. Handleability can be provided.

Further, since the first fixing member 63 is disposed on the upper surface of the first bottom member 62, it is possible to operate the first fixing member 63 from above the first bottom member 62. During this operation, For example, the first bottom member 62 can be easily attached to and detached from the first main body frame 61 without having to turn the tool from below the first bottom member 62 or enter a gap between other members. it can.
For example, when the first main body frame 61 is formed of a pipe or the like and the first bottom member 62 is formed of a sheet metal or the like, the back bottom 21 is integrally formed by injection molding of a synthetic resin material. Thus, the initial cost for mold production and the like can be suppressed, and the back bottom 21 can be manufactured at low cost.

  The first fixing member 63 is disposed on at least one of the four sides of the outer peripheral edge of the first bottom member 62, and the lower surface of the first main body frame 61 is provided on the other side. In addition, a first locking portion 65 that locks to the lower surface of the first main body frame 61 is disposed. Therefore, when an external force that lifts the first bottom member 62 from the first main body frame 61 is applied to the first bottom member 62, the first locking portion 65 is locked to the lower surface of the first main body frame 61. Will be. Thereby, such an external force applied to the first bottom member 62 can be received not only by the first fixing member 63 but also by the first locking portion 65. As a result, it is possible to prevent a large force from being applied to a portion of the first bottom member 62 that is located around the first fixing member 63, and local deformation occurs in the first bottom member 62. Can be suppressed.

  Further, since the first locking portion 65 is disposed on the side portion of the first bottom member 62 that is farthest from the side portion on which the first fixing member 63 is disposed, A large distance can be secured between the first fixing member 63 and the first locking portion 65. For this reason, an external force that lifts the first bottom member 62 from the first body frame 61 is applied to the side of the first bottom member 62 that is farthest from the side where the first fixing member 63 is disposed. In this case, the reaction force generated in the first locking portion 65 can be reduced by receiving the rotational moment generated around the first fixing member 63 by the first locking portion 65. Accordingly, the first bottom member 62 can be reliably locked to the first main body frame 61.

Moreover, the bending part 66 and the 1st latching | locking part 65 can be formed, for example by giving a bending process to the 1st bottom member 62, and the 1st bottom member 62 can be manufactured cheaply.
The shaft body 63a is inserted into the first body frame 61 and the first bottom member 62 into the frame communication hole 61e and the bottom communication hole 62c separately formed, and the flange portion 63b is inserted into the first bottom member. By disposing on the upper surface of 62, the first bottom member 62 can be fixed to the first main body frame 61. Accordingly, when the first bottom member 62 is attached to and detached from the first main body frame 61, the flange portion 63b protruding upward from the upper surface of the first bottom member 62 can be operated. It can be carried out.

Further, since the protruding curved surface 63c is connected from the outer peripheral edge portion of the lower surface of the first fixing member 63 placed on the upper surface of the first bottom member 62, the outer peripheral edge of the flange portion 63b in the first fixing member 63 and In addition, it is possible to suppress the occurrence of a step between the upper surface of the first bottom member 62 and it is possible to suppress an object or the like from being caught by such a step.
Moreover, since the bed apparatus 10 includes the back bottom 21, the above-described effects can be achieved in the bed apparatus 10.

Moreover, when the 1st latching | locking part 65 inclines the front and back of the 1st bottom member 62 with respect to a horizontal direction among the side parts extended in the left-right direction in the outer periphery part of the 1st bottom member 62. , Disposed on the upper side. For this reason, since the front and back surfaces of the first bottom member 62 are inclined with respect to the horizontal direction, the first weight of the first bottom member 62 that cannot be supported by the upper surface of the first main body frame 61 is reduced only by the first fixing member 63. In addition, the first locking portion 65 can also be received, and the load applied to the first fixing member 63 can be suppressed.
In addition, each above-mentioned effect is not restricted to the back bottom 21, It can be effective also in another bottom.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the first bottom member 62 is formed in a plate shape that has a rectangular shape in a top view, but the present invention is not limited to such a configuration. The first bottom member may have a shape other than a rectangular shape in a top view.

Moreover, in the said embodiment, the structure by which the 1st latching | locking part 65 was arrange | positioned in the edge part different from the edge part in which the 1st fixing member 63 was arrange | positioned among the edge parts of the 1st bottom member 62 is shown. However, it is not limited to such a mode. The 1st latching | locking part does not need to be arrange | positioned by the 1st bottom member.
Moreover, in the said embodiment, although the 1st fixing member showed the structure arrange | positioned by the 1st bottom member 62, it is not restricted to such an aspect. A plurality of fixing members may be disposed on the bottom member.
Moreover, in the said embodiment, although the side part in which the 1st fixing member 63 was arrange | positioned, and the side part in which the 1st latching | locking part 65 was arrange | positioned showed each other, such a structure was shown. It is not restricted to a certain aspect.
The 1st latching | locking part and the 1st fixing member may not mutually oppose, and may be arrange | positioned at the same edge part.

Moreover, in the said embodiment, although the 1st fixing member 63 was provided with the shaft 63a and the flange part 63b, and the flange part 63b showed the structure formed by the lower surface and the projecting curved surface 63c, in such an aspect, it showed. Not limited. For example, the first fixing member may be a simple male screw member or the like, and the flange portion may not be formed by a projecting curved surface. Further, the first fixing member may be a member formed of a metal material.
Note that the above-described modification example is not limited to the back bottom 21 and can be applied to other bottoms.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

10 Sleeper 21 Back bottom
61 First body frame (body frame)
61e Frame communication hole 62 First bottom member 62c Bottom communication hole 63 First fixing member 63a Shaft body 63b Flange

Claims (5)

The body frame of the bed apparatus,
A bottom member placed on the upper surface of the main body frame;
The bottom member can be detachably fixed to the main body frame, and includes a fixing member disposed on an upper surface of the bottom member,
The bottom member includes a locking portion that locks to a lower surface of the main body frame, and the fixing member and the locking portion are arranged to face each other.   A side part of the bottom member in which the locking part is provided extends downward and a bent part in which the locking part is formed at a lower end part is provided. The bottom according to claim 1, wherein the portion and the locking portion are integrally formed with each other. In the main body frame and the bottom member, communication holes communicating with each other in the vertical direction are formed separately,
The fixing member includes a shaft body extending in a vertical direction, and a flange portion disposed at an upper end portion of the shaft body,
The fixing member has the flange portion disposed on an upper surface of the bottom member, and the shaft member is integrally inserted into the communication holes of the main body frame and the bottom member, and the bottom member is inserted into the main body frame. The bottom according to claim 1, wherein the bottom is fixed to the bottom.   The said flange part is provided with the lower surface mounted in the upper surface of the said bottom member, and the protruding curved surface extended toward upper direction gradually as it goes inside from the outer periphery of the said lower surface, The Claim 3 characterized by the above-mentioned. The bottom mentioned. The bottom,
A bed device comprising a support frame to which the bottom is attached,
The bed apparatus according to claim 1, wherein the bottom is the bottom according to claim 1.

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